$bc: #e4e4e4;
//宽高
@mixin wh($width, $height){
	width: $width;
	height: $height;
}

//字体大小，颜色
@mixin sc($size, $color){
	font-size: $size;
	color: $color;
}

@mixin fj($type: space-between){
  display: flex;
  justify-content: $type;
}
